Backend
Replication Lag: The Hidden Cost of Read Replicas
Why read replicas introduce stale reads, how replication lag breaks consistency assumptions, and practical patterns to handle it safely.
·4 min read
Tags
Database
25 articles · Page 1 of 3
Backend
Why SQLite Deserves a Place in Your Backend Stack
Not just for mobile apps: with WAL mode and the right replication strategy, SQLite runs production workloads with less operational overhead than Postgres.
·4 min read
Security
Postgres Row-Level Security for Multi-Tenant Applications
How to enforce tenant isolation at the database layer with Postgres RLS instead of relying on application code to remember a WHERE clause.
·4 min read
Backend
Materialized Views in Postgres: Trading Freshness for Speed
How to use materialized views to speed up expensive aggregations in Postgres without silently serving stale data to your users.
·5 min read
Backend
Soft Deletes: The Feature That Costs More Than It Saves
Soft deletes look like a simple safety net, but they silently corrupt your schema, poison your queries, and break your constraints — here's what to use instead.
·5 min read
Backend
Full-Text Search in Postgres, Without Elasticsearch
Postgres has a powerful built-in full-text search engine using tsvector, tsquery, and GIN indexes — no Elasticsearch cluster required for most applications.
·4 min read
Backend
The DataLoader Pattern: Killing N+1 Queries Without an ORM
N+1 is not an ORM problem — implement the DataLoader batching pattern in TypeScript to collapse redundant fetches across any source, microservices included.
·4 min read
Backend
Database Design Mistakes in Every Codebase, and Their Fixes
The recurring database design mistakes behind slow queries, painful migrations and production incidents — with practical fixes and the reasoning.
·4 min read
Architecture
Designing Multi-Tenant SaaS Architectures That Scale
Architect multi-tenant SaaS with database isolation, tenant-aware middleware, quotas, partitioning and security boundaries that scale to ten thousand.
·4 min read
Backend
Database Migrations Without Downtime in Production
Run schema migrations on production databases without downtime: expand-contract, backward-compatible changes, blue-green data and safety checks.
·4 min read
Backend
Connection Pooling: Tuning for Performance Under Load
A deep dive into connection pool configuration: sizing formulas, connection lifecycle, health checking and diagnosing pool exhaustion under real traffic.
·4 min read
Backend
Connection Pooling for High-Throughput Node.js Services
A deep dive into database connection pooling for Node.js: pool sizing, health checks, failover patterns and the misconfigurations that cause outages.
·6 min read